# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 803 - 809 of 931

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## Question 803

### Question

MCQ▾A rectangular park 60 m long and 40 m wide has concreate crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 3 m | |

b. | 4 m | |

c. | 6 m | |

d. | 5 m |

## Question 804

### Question

MCQ▾Which number will replace the question mark?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 30 | |

b. | 24 | |

c. | 22 | |

d. | 26 |

## Question 805

## Question 806

### Question

MCQ▾The average of 9 numbers is 8. What should be added as 10^{th} number to make the average 9?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 10 | |

b. | 90 | |

c. | 18 | |

d. | 72 |

## Question 807

### Question

MCQ▾Two distinct ________ in a plane cannot have more than one point in common

### Choices

Choice (4) | Response | |
---|---|---|

a. | Points | |

b. | Lines and points | |

c. | Lines | |

d. | None of the above |

## Question 808

### Question

MCQ▾The equation has________

### Choices

Choice (4) | Response | |
---|---|---|

a. | Only two solutions | |

b. | Only one solution | |

c. | Only three solutions | |

d. | Infinitely many solutions |

## Question 809

### Question

MCQ▾Which number should come in place of the question mark?

14 | 18 | 12 |

5 | 3 | 5 |

5 | 7 | ? |

75 | 61 | 69 |

### Choices

Choice (4) | Response | |
---|---|---|

a. | 4 | |

b. | 9 | |

c. | 6 | |

d. | 7 |